diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_vec.cc')
| -rw-r--r-- | source/blender/blenlib/intern/math_vec.cc | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/source/blender/blenlib/intern/math_vec.cc b/source/blender/blenlib/intern/math_vec.cc index e1d3707f1e8..a4c825327d2 100644 --- a/source/blender/blenlib/intern/math_vec.cc +++ b/source/blender/blenlib/intern/math_vec.cc @@ -122,52 +122,7 @@ isect_result<mpq2> isect_seg_seg(const mpq2 &v1, const mpq2 &v2, const mpq2 &v3, } #endif -double3 cross_poly(Span<double3> poly) -{ - /* Newell's Method. */ - int nv = static_cast<int>(poly.size()); - if (nv < 3) { - return double3(0, 0, 0); - } - const double3 *v_prev = &poly[nv - 1]; - const double3 *v_curr = &poly[0]; - double3 n(0, 0, 0); - for (int i = 0; i < nv;) { - n[0] = n[0] + ((*v_prev)[1] - (*v_curr)[1]) * ((*v_prev)[2] + (*v_curr)[2]); - n[1] = n[1] + ((*v_prev)[2] - (*v_curr)[2]) * ((*v_prev)[0] + (*v_curr)[0]); - n[2] = n[2] + ((*v_prev)[0] - (*v_curr)[0]) * ((*v_prev)[1] + (*v_curr)[1]); - v_prev = v_curr; - ++i; - if (i < nv) { - v_curr = &poly[i]; - } - } - return n; -} - #ifdef WITH_GMP -mpq3 cross_poly(Span<mpq3> poly) -{ - /* Newell's Method. */ - int nv = static_cast<int>(poly.size()); - if (nv < 3) { - return mpq3(0); - } - const mpq3 *v_prev = &poly[nv - 1]; - const mpq3 *v_curr = &poly[0]; - mpq3 n(0); - for (int i = 0; i < nv;) { - n[0] = n[0] + ((*v_prev)[1] - (*v_curr)[1]) * ((*v_prev)[2] + (*v_curr)[2]); - n[1] = n[1] + ((*v_prev)[2] - (*v_curr)[2]) * ((*v_prev)[0] + (*v_curr)[0]); - n[2] = n[2] + ((*v_prev)[0] - (*v_curr)[0]) * ((*v_prev)[1] + (*v_curr)[1]); - v_prev = v_curr; - ++i; - if (i < nv) { - v_curr = &poly[i]; - } - } - return n; -} uint64_t hash_mpq_class(const mpq_class &value) { |